/*
 * Copyright (c) 2022 vitasystems GmbH and Hannover Medical School.
 *
 * This file is part of project openEHR_SDK
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.ehrbase.openehr.sdk.validation;

import java.util.List;
import java.util.stream.Collectors;

/**
 * Validation exception that contains a list of constraint violations.
 *
 * @since 1.7
 */
public class ConstraintViolationException extends ValidationException {
    private static final long serialVersionUID = -3467256436138419008L;
    private final List<ConstraintViolation> constraintViolations;

    public ConstraintViolationException(String message, List<ConstraintViolation> constraintViolations) {
        super(message);
        this.constraintViolations = constraintViolations;
    }

    public ConstraintViolationException(List<ConstraintViolation> constraintViolations) {
        this(constraintViolations != null ? toString(constraintViolations) : null, constraintViolations);
    }

    /**
     * Returns the constraint violations.
     *
     * @return the list of constraint violations
     */
    public List<ConstraintViolation> getConstraintViolations() {
        return constraintViolations;
    }

    private static String toString(List<ConstraintViolation> errors) {
        return errors.stream()
                .map(error -> error.getAqlPath() + ": " + error.getMessage())
                .collect(Collectors.joining(", "));
    }
}
